Which hardware is more appropriate for my commercial garage door? The 2 in. (50 mm) or the 3 in. (75 mm)?

The answer to this question lies in the size of the door and the extent to which it is used. If the door measures less than 150 ft2 (14 m2) and operates at a normal rate, that is to say, 8 cycles per hour at most, the 2"(50 mm) tracks and rollers are perfectly suitable.

For all other applications, we recommend the 3" (76 mm) hardware. Make sure either the anchor plates or the continuous vertical angles are welded to the tracks, not riveted, and that your hardware bears the GARAGA name.